Sharp VT-3418X - Page 12

VT-341 8X
VT-5118X
DEFLECTION LOOP ADJUSTMENT
Adjusting Conditions
Adjusting Procedures
1. Focus Adjustment
l During the adjustment, keep the unit facing the east.
Adjusting Point
0 T602: Focuscontrol (a part of T602)
1. Receive “MONOSCOPE PATTERN” signal.
2 Set the Brightness and Contrast controls at
NORMAL position.
1. Adjust Focus control (a part of T602) to have best
focus at the central area of CRT.
Adjust point
2. Horizontal Center Adjustment
l During the adjustment, keep the unit facing the east.
1. Adjust R1602 so that the horizontal center of
picture is at the position which gives the relation
Adjusting Point
Cl RI 602: Horizontal Center control
Note: This adjustment should be performed after
ofA=B.
the purity and convergence adjustments.
I
1. Receive “MONOSCOPE PATTERN” signal.
+
A-
l
-)B
(+=
4
I
I
3. Vertical Linearity Adjustment
l During the adjustment, keep the unit facing the east.
Adjusting Point
Cl R526: Vertical Linearity control
1. Receive “MONOSCOPE PATTERN” signal.
1. Adjust R526 so that the vertical linearity of
picture is at best point.
4. Vertical Size Adjustment
l During the adjustment, keep the unit facing the east.
Adjusting Point
Cl R503: Vertical Size control
1. Adjust R503 so that the vertical size of picture is at
the same size as horizontal size.
1. Receive “MONOSCOPE PATTERN” signal.
2. Set the Brightness and Contrast controls at MAX
position.
. V-SIZE
8% TYP
12% MAX
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